Use sketch with notes explanation show how mini-trunking and
skirting trunking could used contain all the electrical supplies a
school’s computing classroom. continuity test
b. polarity test.
25. Use sketch with notes explanation show the earthing and
protective bonding arrangements the mains intake position a
230V system.
20. only competent people may work ‘live’
d. Compare PVC/SWA cables with cables and give their advantages,
disadvantages and typical applications.
. protected from overcurrent
c. Every caravan pitch must have least one 16A socket outlet for
connection caravan. Identify from the list below the test which used verify that all fuses,
circuit breakers and switches are connected the line conductor:
a.
24. The socket outlet must be:
a. protected additionally RCD
d. functional test
d. Use sketch with notes explanation show the earthing and
protective bonding arrangements the mains intake position a
230V cable sheath supply. All final circuits bathroom, both power and lighting, must have:
a. State the advantages conduit trunking and tray cable enclosure
system for commercial installation such shopping centre. buried depth 600mm. Zone protection. the industrial type
b.
26.
23. earth fault loop impedance
c. everyone may work ‘live’
b. The Electricity Work Regulations state that:
a. overcurrent protection
b.
27.
21. one may work ‘live’
c. RCD protection
c.
22. IPX7 protection
d. only instructed and skilled people may work ‘live’.365
U W
6 6
2 2
C1
L1 C1
2
C3
4
5
6
To phase supply
To phase motor
19
